evan s



(No Model.)

' G. T. EVANS.

CHAIR.

No. 345,290. Patented July 13, 1886,

itnesses.

' Inventor.

- seat.

@OFFIICEQ PATENT GEORGE T. EVANS, OF BUFFALO, NEW YORK.

CHAIR.

SPECIFICATION forming part of Letters Patent No. 345,290, dated July 13,1886.

Application filed March 13, 1886. Serial No. 195,065. No model.)

To ctZZ whom it may concern:

Be it known that I, GEORGE T. EVANS, a citizen of the United States,residing in Buffalo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in the Construction ofChairs, of which the following is a specification.

My invention relates to certain improvements in the construction ofchairs, whereby their strength and durability are greatly increased; andit consists of a system of screwconnections for securely and rigidlyholding the several parts together, all of which will be fully andclearly hereinafter shown, described, and claimed by reference to theaccompanying drawings, in which Figure 1 is a side elevation, partly insection, showing the way in which the legs are secured to the chair andthe rounds or crossbraces for securing the legs are held in place. Fig.2 is a back view of a chair, a portion being broken away or in sectionso as to show the manner of securing the back-frame to the Fig. 3 is abottom View of a chair, a horizontal section being cut through the legsin or about the line X X, Fig. 1, so as to better show the under sidesof the screw-sleeves for securing the legs in place. Fig. 4 is adetached section through a portion of a seat and leg, showing on anenlarged scale the mode of connecting thelegs to the seat of a chair;and Fig. 5 is a portion of the seat and chair-back, showing on a largerscale the manner of securing the back of the chair to the seat.

In said drawings, 1 represents the seat of a chair made in the usualway. The legs 2 are all secured together by the rounds or braces 3 and4., each of which are provided with a righthand screw-thread, 5, and aleft-hand screwthread, 6, so that by turning the round one way it can bemade to enter a corresponding opening in the legs at each end at thesame time. In this way the legs are all rigidly secured together by therounds or braces. The

legs are secured to the seat by means of the sleeves 7, which are eachprovided with a nutsection, 8, and with an inside screw-thread, 9, andan outside screw-thread, 10, these screwthreads 9 and 10 being made to'run in opposite directions-for instance, if the inside screw-thread, 9,is left-handed, the outside thread, 10, should be a right hand screw-vthread. The upper part of each leg is provided with a screwthread, 11,adapted to screw into the inside thread of the sleeves, and the underside of the seat is provided with holes 12, adapted to receive theoutside screw portions of the sleeves. It will now be seen from thisconstruction that the legs are secured to the seat of the chair bystarting their screw portions into the. inside screw-threads, 9, of thesleeve, and the outside screw portion, 10, 0f the sleeve into thescrew-holes 12 in the under side of the seat, and that by turning thesleeve in one direction the screw portion of the leg will enter thesleeve as fast as the sleeves enter the chair-seat, so that when thesleeve is screwed home the leg will also be in its proper positionwithin the sleeve, both being rigidly secured together and to the seat.The sleeve is turned by means of the nut-section 8 and an ordinarywrench. The back-frame 13 of the chair is secured rigidly to thechair-seat by means of the sleeves 14, having an inside and outsidescrew-thread, 15 and 16, both threads running the same way. The lowerends of the chair-back frame are each provided with a screw portion, 17,adapted to fit the screwthread 15 on the inside of the sleeves l4, andtheholes in the seat, into which the chair-frame is fitted, areprovidedwith screw-threads adapt ed to receive the screw-threads of the sleeves.

To secure the back-frame to the chair-seat, all that is required is toplace the end portions 17 through the backs frame holes until stopped bythe shoulders 18, and then screw the sleeves up to their place by meansof the nut portions 19 and a screw-wrench, the outside screwthread ofthe sleeve entering the holes in the seat, and the screw portions 17 ofthe chairback frame entering the corresponding holes through thesleeves. By this and the means above described every part of the chairis firmly secured together, and its strength and durability geatlyincreased.

It is obvious that this invention may be as readily applied to astoolwithout a back as to an ordinary chair having the usual back-support;and it will be further seen that the four legs may be securely fastenedtogether by the horizontal braces or rounds 3 and 4, and in thatcondition secured to the seat by means of the right and left handscrew-sleeves 7 by starting them onto the screw portions of the legs andentering them into the holes 12, and turning them in one direction bymeans of a wrench or its equivalent.

I am aware that it is not new to secure the leg-rounds to the legs orother parts of the chair together by right and left hand screws. Itherefore do not claim such broadly; but

What I do claim is- 1. A chair having its legs secured to the seat bymeans of screwsleeves 7, provided with nut-sections 8, and exterior andinterior screwthreads, one of which is right-handed and the other aleft-handed screw, as set forth, the exterior screw-thread being adaptedto screw into the seat, and the interior screw-threads by running in anopposite direction being adapted to draw the leg of the chair into thesleeve while it is being turned by the nut-section s and screwed intothe seat, substantially as desleeves 7, having nut-sections 8, andscrewthreads on the inside adapted to receive the screw portions of thelegs, and screw-threads running in an opposite direction on the outside,adapted to screw into corresponding holes in the seat, whereby the legsmay be firmly secured together and to the seat, substantially asdescribed.

GEORGE T. EVANS. Witnesses:

J ENNIE M. CALDWELL,

J AMES SANGSTER.

